Wind power generator plant power output control, with super-synchronous current converter stage

摘要

In a procedure for controlling the power output of a wind power plant with a super-sync current converter stage, the induction generator is run at, or below, synchronous speed and is DC-excited using electronics on the stator side. The total mechanical power of the wind turbine rotor is fed into the electrical grid via the conventional converter cascade on the rotor side. The 3-phase AC regulator 6 is fully connected for AC excitation of the generator. The transition into DC-excited operation takes place by switching off the valves of the AC regulator and switching on those of the DC regulator 7.